Given the faff it is to replace the expansion tank in a CH boiler, what are the drawbacks of just leaving a head of air in the highest radiator as a temporary fix ?
Failed expansion tank - possible cheat ?
May 16, 2017
7 Replies
Follow replies to this discussion?
First reply
As a temporary fix its fine. However over time it may get absorbed into the primary water, and result in faster corrosion. You can add a replacement expansion vessel anywhere on the system though, you do not have to change the boiler one if its very difficult to get at. (unless…
Read the full replyInformation here may be outdated?
As a temporary fix its fine. However over time it may get absorbed into the primary water, and result in faster corrosion. You can add a replacement expansion vessel anywhere on the system though, you do not have to change the boiler one if its very difficult to get at. (unless its actually leaking etc)
A lot of hot air? Air locks? Steam? Brian
Fit an expansion vessel like
formatting link
and its fixed.
I expect the empty rad area would get wet but not get inhibitor, so a short term thing only.
NT
Expansion+Vessel/p29704
Tx :)
If the radiator was the highest, then air should stay up high ...
Expansion+Vessel/p29704
Is there a downside to using one bigger than you think you need, I wonder ?
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required